How about Matthysse vs Alvarez?
Aside from the fact that he bigger than both of them, he is also a far better fighter. He is very patient but when he attacks, he rips his opponents with amazing combinations and brutal body shots. He also has decent head movement and counter punching ability.
If Matthysse was as big as Alvarez naturally, I would say that his heavy hands would give Alvarez a lot of problems, but Alvarez is a lot bigger than Lucas and would win on points or wear him down. As for Rios, with his lack of defense and inability to put Alvarez down, it would be an easy fight for Canelo. Alvarez is a good boxer with power. Rios relies on grinding his opponents down and taking them out. Alvarez would beat him to the punch, wouldn't be there for Rios to hit back, and would eventually break Rios down.
Rios would get destroyed. As for Matthyssee alverez Mattyssee will weigh in about 154 don't know how much he would go up but i don't think his power will be as effective vs Alverez as it would be for someone like Mayweather. Hard to tell though i think Alveerez takes both fights.
Saul Alvarez beats both of them.
Canelo will kill both of them
Who would win that?
How about Matthysse vs Alvarez?